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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
2571 | * Filters the date a post was last modified for display. |
2572 | * |
2573 | * @since 2.1.0 |
2574 | * |
2575 | * @param string|false $the_modified_date The last modified date or false if no post is found. |
2576 | * @param string $format PHP date format. |
2577 | * @param string $before HTML output before the date. |
2578 | * @param string $after HTML output after the date. |
2579 | */ |
2580 | $the_modified_date = apply_filters( 'the_modified_date', $the_modified_date, $format, $before, $after ); |
2581 |
|
2582 | if ( $echo ) { |
2583 | echo $the_modified_date; |
2584 | } else { |
2585 | return $the_modified_date; |
2586 | } |
2587 |
|
2588 | } |
2589 |
|